Dusting apparatus



June 30, 1925. 1,543,915

L. B. GREEN DUS TNG APPARATUS Filed Sept. 8, 1923 INH Y Illlllll atentetl June 30,1925,

UNITED .STATES PATENT OFFICE.

LEE B. GREEN, OF LAKEVOOD, OHIO, ASSIGNOR TO TH GLOBE MACHINE AND STAMPING COlIVIEANTr,l OF CLEVELAND, OHO, A CORPORATION OF OHIO.

DUs'rrNG APPARATUS.

Applicationiled September-8,1923. Serial No. 661,584.

To all whom t may concern Be it known that 1, Lun B. GREEN, a citizen of the United States, and a resident of Lakewood, county of Cuyahoga, Sta-te4 of 5 Ohio, have invented certain new and useful Improvements in Dusting Apparatus, of which the following is a specification.

This invention relates to apparatus for spraying vegetation with insecticides and more particularly to that type of apparatus commonly known as a dusting machine for spraying a dry powder, although 'some of the features of the invention are adapted for more general use.

1t is one of the objects of the invention to provide -an improved form of valve and feeding mechanism for supplying powdered insecticide at the proper rate and in a finely divided condition.

A further object of the invention is to provide a valve and feeding mechanism that will be comparatively simple in construction, eliicient in operation and durable.

Other objects and the features of novelty 25 will be apparent from the following descrip tion, taken in connection with the accompanying drawings, of which:

Figure 1 is a vert-ical section through an apparatus embodying my invention;

Fig. 2 is a transverse section on the line 2-2 of F10: 1; y s Fig. Slis a side elevation of theparts ap- V pearing in Fig. 1, but shown in another relation; and

Fig. 1 is a side elevation of one of the parts.

Referring to the drawings, 10 indicates the bottom of a container for the insecticide material. This bottom is provided with an outlet opening 11 in cooperation with which there is the tubular member 12 having a flange 13 that is secured to the bottoml() by rivets ori soldering orv in any other suitable manner.

A vertical shaft 14; carries, at its upper end, a -head or disclil e member 15 which has, preferably, a conical upper surface 1G. The shaft 14 is rotated at relatively high speed in any suitable manner as by means of the gears 17 and 18.

A specific application of the apparatus herein referred to is shown in my co-pending application No. 661,585 filed September 8, 1923, which relates lto a complete dusting ap` paratus, and the gearing 17, 18, illustrates the method by which the shaft 14 (or its equivalent) is rotated in said apparatus.

The shaft 14 is preferably arranged in axial alignment with the opening 11 and attachment 12, and the member 15 is spaced from the lower edge 19 of the attachment to provide an lannular discharge opening for the material. As will be readily understood the rotation of the member 15 causes the material to be thrown out, by centrifugal force. 1n order to regulate the flow of the material 1 provide a sleeve valve 20, on the exterior of the attachment 12, and the lower edge of this sleeve valve cooperates with the peripheral portion of the member 15 to regulate the size of the opening through which the material may be discharged. 1f desired a groove 21 may be provided in the upper surface of the member 15 to receive the lower end of the sleeve 2O for the purpose of entirely closing the space through which the material is discharged.

The outer surface of the attachment 12 is provided with one or more spirally ar ranged cam slots 22 and in the form of the invention illustrated I have shown three of these slots but it will be understood that anyv desired number, from one up, may be used. The sleeve 20 carries radially arranged screws 23, the inner ends of which cooperate with the slots 22 and thus connectthe 'sleeve 2O to the attachment 12 and provide means whereby, when the sleeve is turned on the attachment 12, there will always be an axial movement to or from the member 15. The sleeve 20 has an arm 241: thereon to which an actuating rod' 25 may be attached by a bolt 25 for the purpose of turning or rotating the sleeve on the attachment 12.

The container, ofl which 10 indicates the bottom wall, will usually be provided with some form of agitator and 1 have indicated at 26 a portion of the agitator employed in the form of dusting apparatus disclosed in my aforesaid application.

1t is also desirable to have suitable means for agitating the material in the attachment 12 and to break up any lumps that may exist and, for this purpose, 1 have provided, on the member 15, what amounts to two pins 2T, which project upwardly into the opening in the attachment 12. As a preferred construction 1 form the pins 2T from a single piece of rodY bent into a U-shape which gives a connection 2S between the upper ends of the pins and greatly stiffens them. Arranged on the pins 27 are members 29 which rotate 5 on the pins and run in close proximity to the inner surface otl the attachment l2 and thus cooperate with the latter to break up any lumps that may exist in the material. I pret'er to form the members 29 from Wire Wound l like a helical spring, this arrangement giving flexibility to the members and also making a very etfective device for breaking up the lumps. It Will be understood that the rotation of the member l5, athigh speed, l causes the members 29, which are loose on the pins 27, to be thrown out by centrifugal torce and thus operate eiiiciently in the breaking up of lumps of material.

lVhen the mechanism is in operation the 2O material will be supported by the member l5 kand the rotation ot the latter Will cause the material to be .thrown out underthe lower edge of the sleeve when the ,latter is slightly spaced V'from the member 15. The U-shaped member comprising the pins 27 and the cross-connection 28 Will thoroughly agitate the material and, in cooperation with the members 29, Will keep the material thoroughly broken up and in condition to How. 30 The rate of feeding may be .accurately controlled by turning the sleeve 20 from ther fully open position shown in Fig.A 3 to the closed position shown in Fig. l.

Having thus described my invention, what I claim is: Y

1. In apparatus of the .class described, thc combination of a container having a discharge opening, .a rotary member opposed to said opening and spaced therefrom to provide an annular opening through which the material may be discharged, a pin carried by said member and projecting into said discharge opening, and a member loosely arranged on said pin and .rotatable thereon to agitate and break up the material in said discharge opening.

2. In apparatus of the class described, .the combination of a container having'a discharge opening, a rotary member opposed to said opening a-nd spaced therefrom to provide an annular opening through which the material maybe discharged, a plurality of pins carried by said member and projecting into said disch-arge opening, and members loosely arranged on said pins and rotatable thereon to agitate and break up the material in said dischargeV opening.

3. In apparatus of the class described, the combination of a container having a discharge opening, a rotary member opposed to said opening and spaced therefrom to provide wan annular opening through which the material may be discharged, a pin carried by said member vand projecting into said discharge opening, and a substantially helicalwire coil loosely arranged on said pin and adapted to run around the interior of said discharge opening to agitato and break up the material therein.

4t. In apparatus ot the class described, the

combination of a `container having a discharge opening, a rotary member opposed to said opening and spaced therefrom to provide an annular opening through which the material may be discharged, an inverted U-shaped member carried by said rotary member and projectinginto `said discharge opening, and substantially helical wire coils loosely arranged on said U-shaped member and adapted to run around the interior oi' said discharge opening to agitate and break up the material therein.

5. In apparatus of the class described, the combination ot a container having a tubular outlet attachment in the bottom, a rotary member in axial alignment with said outlet and spaced therefrom .to provide an annular discharge opening, a sleeve surrounding said attachment and movable to and from said member to vary the size -oi said annular opening, and means carried by said member and rotatable thereon Within said attachment to agitate and break .up the material.

6. In apparatus of t-he class described, the combination of a container having a tubular outlet attachment in the bottom, a rotary member in `axial alignment with said outlet and spaced therefrom tov provide an annular discharge opening, a sleeve rotatable on said attachment, `ca-m means connecting'said sleeve and said attachment adapted to 4cause the sleeve to move to or from said member when rotated on said attachment, and means carried by said member and rotatable there on arranged to run around the interior of said attachment to agita-te and break up the material.

In testimony whereof I affix my signature.

LEE B. GREEN. 

